When a crime is committed and law enforcement does not solve it right away, it quickly becomes a “cold case,” much to the distress of family members and friends of the victim. When cases go cold, it’s often from a lack of evidence or witnesses, or a dead end in the investigation. Sometimes this is resolved as time passes, new technologies becomes available, or a new detective approaches a case with fresh eyes. The Bransons offer a detailed exploration of cold cases—how they get investigated, why some get solved and others languish, and what law enforcement has to do to get those cases closed. They use numerous examples of real life cases including details from the investigation of 29-year-old preschool teacher Julie Love who was missing for a year before her skeletal remains were found in a dumpster. These case studies are part methodology and part testimonial to the work of the police and result in a deeply fascinating study of law enforcement tactics and resources. While the book’s focus is at times muddy, all the topics covered are intriguing. Photos. (June)